{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Karen Lund", "hasEmail": "mailto:klund@usgs.gov"}, "description": "These data are U-Pb sensitive high-resolution ion microprobe (SHRIMP) geochronology data from quartz porphyry dikes for the study of the Butte mining district, U.S.A. Results of the study are described and interpreted in Lund and others (2018).", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9F872I5", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.5ba1def6e4b08583a5c4365d.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_5ba1def6e4b08583a5c4365d", "keyword": ["40Ar/39Ar geochronology", "Ag-polymetallic lodes", "BSE", "Butte", "CL", "Cu lodes", "GGGSC", "Geology, Geophysics, and Geochemistry Science Center", "MRP", "Mineral Resources Program", "Montana", "SHRIMP", "U-Pb geochronology", "USGS:5ba1def6e4b08583a5c4365d", "United States", "alteration", "backscatter electron", "copper", "economic geology", "geochronology", "geoscientificInformation", "molybdenum", "panchromatic cathodoluminescent", "quartz porphyry dikes", "radiometric dating", "sensitive high-resolution ion microprobe", "silver", "zinc"], "modified": "2020-09-29T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-112.5942, 45.9221, -112.4159, 46.0629", "theme": ["geospatial"], "title": "U-Pb SHRIMP geochronologic data for study of dikes, Butte, U.S.A."}